Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Common Stock	Additional paid in capital	Accumulated deficit	Total
Beginning balance at Jan. 31, 2018	$ 200,000	$ 81,777,000	$ (72,125,000)	$ 9,852,000
Beginning balance (in shares) at Jan. 31, 2018	20,005,977
Statement of changes in stockholders' equity
Surrender of stock		(47,000)		(47,000)
Surrender of stock (in shares)	(26,062)
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		222,000		222,000
Net income (loss)			(569,000)	(569,000)
Ending balance at Apr. 30, 2018	$ 201,000	82,115,000	(71,254,000)	11,062,000
Ending balance (in shares) at Apr. 30, 2018	20,034,446
Beginning balance at Jan. 31, 2018	$ 200,000	81,777,000	(72,125,000)	9,852,000
Beginning balance (in shares) at Jan. 31, 2018	20,005,977
Statement of changes in stockholders' equity
Net income (loss)				(2,768,000)
Ending balance at Oct. 31, 2018	$ 202,000	82,404,000	(73,453,000)	9,153,000
Ending balance (in shares) at Oct. 31, 2018	20,127,703
Statement of changes in stockholders' equity
Cumulative effect of ASC 606 implementation			1,440,000	1,440,000
Beginning balance at Apr. 30, 2018	$ 201,000	82,115,000	(71,254,000)	11,062,000
Beginning balance (in shares) at Apr. 30, 2018	20,034,446
Statement of changes in stockholders' equity
Stock issued		35,000		35,000
Stock issued (in shares)	35,277
Restricted stock issued	$ 1,000	(1,000)
Restricted stock issued (in shares)	100,000
Restricted stock forfeited	$ (1,000)	1,000
Restricted stock forfeited (in shares)	(122,500)
Surrender of stock		(11,000)		(11,000)
Surrender of stock (in shares)	(7,330)
Share-based compensation expense		145,000		145,000
Net income (loss)			(1,521,000)	(1,521,000)
Ending balance at Jul. 31, 2018	$ 201,000	82,284,000	(72,775,000)	9,710,000
Ending balance (in shares) at Jul. 31, 2018	20,039,893
Statement of changes in stockholders' equity
Restricted stock issued	$ 1,000	(1,000)
Restricted stock issued (in shares)	100,000
Restricted stock forfeited (in shares)	(8,333)
Surrender of stock		(4,000)		(4,000)
Surrender of stock (in shares)	(3,857)
Share-based compensation expense		125,000		125,000
Net income (loss)			(678,000)	(678,000)
Ending balance at Oct. 31, 2018	$ 202,000	82,404,000	(73,453,000)	9,153,000
Ending balance (in shares) at Oct. 31, 2018	20,127,703
Beginning balance at Jan. 31, 2019	$ 208,000	82,544,000	(76,550,000)	6,202,000
Beginning balance (in shares) at Jan. 31, 2019	20,767,708
Statement of changes in stockholders' equity
Restricted stock issued	$ 1,000	(1,000)
Restricted stock issued (in shares)	140,000
Restricted stock forfeited (in shares)	(5,367)
Share-based compensation expense		269,000		269,000
Net income (loss)			313,000	313,000
Ending balance at Apr. 30, 2019	$ 209,000	82,812,000	(76,237,000)	6,784,000
Ending balance (in shares) at Apr. 30, 2019	20,902,341
Beginning balance at Jan. 31, 2019	$ 208,000	82,544,000	(76,550,000)	6,202,000
Beginning balance (in shares) at Jan. 31, 2019	20,767,708
Statement of changes in stockholders' equity
Net income (loss)				(459,000)
Ending balance at Oct. 31, 2019	$ 308,000	94,970,000	(77,009,000)	18,269,000
Ending balance (in shares) at Oct. 31, 2019	30,767,439
Beginning balance at Apr. 30, 2019	$ 209,000	82,812,000	(76,237,000)	6,784,000
Beginning balance (in shares) at Apr. 30, 2019	20,902,341
Statement of changes in stockholders' equity
Stock issued		4,000		4,000
Stock issued (in shares)	5,072
Restricted stock issued	$ 2,000	(2,000)
Restricted stock issued (in shares)	222,518
Restricted stock forfeited	$ (3,000)	3,000
Restricted stock forfeited (in shares)	(318,750)
Surrender of stock		(31,000)		(31,000)
Surrender of stock (in shares)	(21,708)
Share-based compensation expense		160,000		160,000
Capital contribution		16,000		16,000
Net income (loss)			(608,000)	(608,000)
Ending balance at Jul. 31, 2019	$ 208,000	82,962,000	(76,845,000)	6,325,000
Ending balance (in shares) at Jul. 31, 2019	20,789,473
Statement of changes in stockholders' equity
Restricted stock issued	$ 5,000	(6,000)		(1,000)
Restricted stock issued (in shares)	550,000
Restricted stock forfeited		1,000		1,000
Restricted stock forfeited (in shares)	(32,060)
Surrender of stock		(37,000)		(37,000)
Surrender of stock (in shares)	(13,665)
Issuance of common stock, net of $681,000 directly attributable offering expenses	$ 95,000	8,887,000		8,982,000
Issuance of common stock, net of $681,000 directly attributable offering expenses (in shares)	9,473,691
Redemption of Series A Preferred Stock		2,873,000		2,873,000
Share-based compensation expense		290,000		290,000
Net income (loss)			(164,000)	(164,000)
Ending balance at Oct. 31, 2019	$ 308,000	$ 94,970,000	$ (77,009,000)	$ 18,269,000
Ending balance (in shares) at Oct. 31, 2019	30,767,439