Significant Accounting Policies - Additional Information (Details)		12 Months Ended
	Dec. 13, 2013 ft²	Jan. 31, 2018 USD ($) segment shares	Jan. 31, 2017 USD ($) shares	Jan. 31, 2015 sqft	Feb. 01, 2018 USD ($)	Sep. 08, 2016 USD ($)
Allowance for Doubtful Accounts
Allowance for doubtful accounts		$ 349,058	$ 198,449
Bad debt expense		233,550	121,025
Concessions Accrual
Concessions Costs		48,000	52,000
Leases
Capital lease obligation		0	91,000
Capitalized Software Development Costs
Capitalized computer software, additions		1,836,000	1,979,000
Capitalized computer software, amortization		2,113,385	2,771,437
Research and development expense		5,352,189	7,453,638
Revenue Recognition
Deferred professional costs		471,000	500,000
Accumulated amortization of deferred costs		312,000	370,000
Amortization of professional expenses		$ 270,000	254,000
Goodwill and Intangible Assets
Number of operating segments | segment		1
Number of reportable segments | segment		1
Severances
Severance expenses		$ 58,000	360,000
Equity Awards
Share-based compensation expense		1,109,241	1,787,367
Income Taxes
Reserves for uncertain tax positions and corresponding interest and penalties		$ 286,000	$ 263,000
Net Earnings (Loss) Per Common Share
Preferred stock to common stock conversion ratio		1
Convertible Preferred Stock
Net Earnings (Loss) Per Common Share
Antidilutive securities (in shares) | shares		2,949,995	2,949,995
Restricted Stock
Net Earnings (Loss) Per Common Share
Antidilutive securities (in shares) | shares		293,568	377,135
Stock Options
Net Earnings (Loss) Per Common Share
Antidilutive securities (in shares) | shares		2,173,156	2,100,480
Warrant
Net Earnings (Loss) Per Common Share
Antidilutive securities (in shares) | shares		1,400,000	1,400,000
Employee Severance
Severances
Accrued severances		$ 0	$ 9,000
Minimum
Capitalized Software Development Costs
Useful life of capitalized computer software		3 years
Goodwill and Intangible Assets
Estimated useful life		1 year
Maximum
Capitalized Software Development Costs
Useful life of capitalized computer software		5 years
Goodwill and Intangible Assets
Estimated useful life		15 years
Interpoint Partners, LLC
Leases
Area under lease (sq. ft.) | ft²	24,335
Duration of rent allowance	8 months
Meta
Leases
Area under lease (sq. ft.) | sqft				10,350
Lease duration				2 months
Restricted Stock Award
Equity Awards
Required service period		1 year
Restricted Stock
Equity Awards
Shares surrendered for tax withholding (in shares) | shares		32,033	8,241
Tax withholding obligations		$ 42,000	$ 12,000
Shares awarded (in shares) | shares		220,337	828,225
Internally-developed software | Opportune IT
Capitalized Software Development Costs
Intangible assets		$ 350,000				$ 350,000
Subsequent event | Accumulated deficit | ASU 2014-09
New Accounting Pronouncements and Changes in Accounting Principles
Cumulative impact of new accounting principle					$ 1,400,000