CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - 6 months ended Jun. 30, 2017 - USD ($) $ in Thousands	Common Stock	Held in Treasury	Additional Paid-in Capital	Accumulated Deficit	Total
Balance at beginning of period at Dec. 31, 2016	$ 2		$ 91,027	$ (34,923)	$ 56,106
Balance at beginning of period (in shares) at Dec. 31, 2016	16,628,476
Increase (Decrease) in Stockholders' Equity
Issuance of restricted stock (in shares)	15,596
Shares surrendered by stockholder (in shares)	(246)
Shares repurchased		$ (959)			(959)
Shares repurchased (in shares)		(73,466)
Net exercise of stock warrants (in shares)	28,431
Net exercise of stock options			(2,035)		(2,035)
Net exercise of stock options (in shares)	593,409
Exercise of stock options			179		179
Exercise of stock options (in shares)	94,636
Stock based compensation expense			6,837		6,837
Net loss				(4,345)	(4,345)
Balance at end of period at Jun. 30, 2017	$ 2	$ (959)	$ 96,008	$ (39,268)	$ 55,783
Balance at end of period (in shares) at Jun. 30, 2017	17,360,302	(73,466)