CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Treasury Stock, Common [Member]	Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2021	$ 32,639	$ 6	$ 366	$ 293,030		$ (260,763)
Beginning Balance (in shares) at Dec. 31, 2021		565	36,574,702
Issuance of common stock from stock option awards	$ 22		$ 2	20
Issuance of common stock from stock options awards, shares	339,125		242,475
Issuance of restricted common stock	$ 134		$ 1	133
Issuance of restricted common stock, shares			115,000
Stock-based compensation expense	406			406
Repurchase of common stock	(395)				$ (395)
Repurchase of common stock, shares					243,468
Net Income (Loss)	15,493					15,493
Ending Balance at Dec. 31, 2022	48,299	$ 6	$ 369	293,589	$ 395	(245,270)
Ending Balance (in shares) at Dec. 31, 2022		565	36,932,177		243,468
Issuance of common stock from stock option awards	$ 9		$ 1	8
Issuance of common stock from stock options awards, shares	102,125		75,767
Cumulative change in accounting principle	$ (231)					(231)
Issuance of restricted common stock	151		$ 2	149
Issuance of restricted common stock, shares			149,592
Issuance of common stock due to conversion of Series N Preferred stock, shares		(2)	80
Stock-based compensation expense	776			776
Repurchase of common stock	(399)				$ 399
Repurchase of common stock, shares					152,707
Net Income (Loss)	12,475					12,475
Ending Balance at Dec. 31, 2023	$ 61,080	$ 6	$ 372	$ 294,522	$ 794	$ (233,026)
Ending Balance (in shares) at Dec. 31, 2023		563	37,157,616		396,175