Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Common Stock	Additional Paid-in Capital	Retained Earnings	Total
Beginning balance (in shares) at Jan. 31, 2017	19,695,391
Beginning balance at Jan. 31, 2017	$ 197,000	$ 80,668,000	$ (69,026,000)	$ 11,839,000
Statement of Changes in stockholders' equity
Stock issued pursuant to Employee Stock Purchase Plan		45,000		45,000
Stock issued pursuant to Employee Stock Purchase Plan (in shares)	47,282
Restricted stock issued	$ 3,000	(3,000)
Restricted stock issued (in shares)	295,337
Surrender of stock upon vesting of restricted stock to satisfy tax withholding obligations (in shares)	(32,033)
Surrender of stock upon vesting of restricted stock to satisfy tax withholding obligations		(42,000)		(42,000)
Share-based compensation expense		1,109,000		1,109,000
Net loss			(3,099,000)	(3,099,000)
Ending balance (in shares) at Jan. 31, 2018	20,005,977
Ending balance at Jan. 31, 2018	$ 200,000	81,777,000	(72,125,000)	9,852,000
Statement of Changes in stockholders' equity
Stock issued pursuant to Employee Stock Purchase Plan and exercise of stock options		44,000		44,000
Stock issued pursuant to Employee Stock Purchase Plan and exercise of stock options (in shares)	48,616
Restricted stock issued	$ 8,000	(8,000)
Restricted stock issued (in shares)	826,666
Restricted stock forfeited	$ (1,000)	1,000
Restricted stock forfeited (in shares)	(130,833)
Surrender of stock upon vesting of restricted stock to satisfy tax withholding obligations (in shares)	(37,249)
Surrender of stock upon vesting of restricted stock to satisfy tax withholding obligations		(62,000)		(62,000)
Conversion of Series A Preferred Stock	$ 1,000	163,000		164,000
Conversion of Series A Preferred Stock (in shares)	54,531
Share-based compensation expense		629,000		629,000
Net loss			(5,865,000)	(5,865,000)
Ending balance (in shares) at Jan. 31, 2019	20,767,708
Ending balance at Jan. 31, 2019	$ 208,000	$ 82,544,000	(76,550,000)	6,202,000
Statement of Changes in stockholders' equity
Cumulative effect of ASC 606 implementation			$ 1,440,000	$ 1,440,000