Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity and Stock Compensation - Schedule of Stock Options Granted (Details)

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Stockholders' Equity and Stock Compensation - Schedule of Stock Options Granted (Details) - $ / shares
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Stockholders' Equity Note [Abstract]      
Options outstanding - beginning of year (in shares) 1,740,000 1,638,000 1,307,000
Granted (in shares) 147,500 420,500
Exercised (in shares) 0 (25,000)
Cancelled, Shares (27,000) (46,000) (64,000)
Options outstanding - end of year (in shares) 1,713,000 1,740,000 1,638,000
Options granted and subject to future vesting (in shares) 4,000 263,000 884,000
Exercisable, at end of year (in shares) 1,709,000 1,477,000 1,085,000
Available for grant, Shares (in shares) 20,000 20,000 262,000
Options outstanding - beginning of year (in dollars pre share) $ 1.40 $ 1.60 $ 1.72
Granted (in dollars pre share) $ 1.35 1.39 1.64
Exercised (in dollars pre share) 0 1.08
Cancelled (in dollars pre share) $ 13.50 9.50 4.53
Options outstanding - end of year (in dollars pre share) 1.21 1.40 1.60
Options granted and subject to future vesting (in dollars pre share) $ 1.48 $ 1.54 $ 1.32