Stockholders' Equity (Details 2)	3 Months Ended
	Apr. 30, 2019 $ / shares shares
Restricted stock, outstanding, beginning	137,999
Restricted stock, granted	3,341
Restricted stock, vested	0
Restricted stock, forfeited	0
Restricted stock, outstanding, ending	141,340
Weighted average grant date fair value, outstanding, beginning | $ / shares	$ 13.77
Weighted average grant date fair value, granted | $ / shares	12.69
Weighted average grant date fair value, vested | $ / shares	0.00
Weighted average grant date fair value, forfeited | $ / shares	0.00
Weighted average grant date fair value, outstanding, ending | $ / shares	$ 13.75
Restricted stock grants - employees
Restricted stock, outstanding, beginning	84,126
Restricted stock, granted	0
Restricted stock, vested	0
Restricted stock, forfeited	0
Restricted stock, outstanding, ending	84,126
Restricted stock grants - non-employee directors
Restricted stock, outstanding, beginning	28,829
Restricted stock, granted	0
Restricted stock, vested	0
Restricted stock, forfeited	0
Restricted stock, outstanding, ending	28,829
Retainer in stock - non-employee directors
Restricted stock, outstanding, beginning	25,044
Restricted stock, granted	3,341
Restricted stock, vested	0
Restricted stock, forfeited	0
Restricted stock, outstanding, ending	28,385