Significant Accounting Policies - Additional Information (Details)				12 Months Ended
	Dec. 13, 2013 ft²	Aug. 16, 2012 ft²	Apr. 10, 2012 ft²	Jan. 31, 2016 USD ($) segment shares	Jan. 31, 2015 USD ($) shares	Feb. 03, 2014 USD ($)	Jan. 31, 2013 USD ($)
Allowance for Doubtful Accounts
Allowance for doubtful accounts				$ 155,407	$ 665,962
Concessions Accrual
Concessions Costs				54,000	58,000
Bad debt expense				124,235	440,771
Leases
Property and equipment, net				2,454,075	3,136,815
Accumulated depreciation and amortization				2,407,746	1,617,423
Capitalized Software Development Costs
Capitalized computer software, additions				$ 0	620,000
Useful life of capitalized computer software				5 years
Capitalized computer software, amortization				$ 3,073,479	3,677,991
Research and development expense				9,093,353	9,756,206
Revenue Recognition
Deferred professional costs				571,000	570,000
Accumulated amortization, deferred finance costs				265,000	275,000
Amortization of professional expenses				$ 136,000	166,000
Goodwill and Intangible Assets
Number of operating segments | segment				1
Number of reportable segments | segment				1
Severances
Severance expenses				$ 43,000	666,000
Equity Awards
Share-based compensation expense				2,386,490	1,934,298
Comprehensive Loss
Other comprehensive income (loss)				0	111,086
Income Taxes
Reserves for uncertain tax positions and corresponding interest and penalties				$ 0	$ 0
Convertible Preferred Stock
Net Earnings (Loss) Per Common Share
Antidilutive securities | shares				2,949,995	2,949,995
Restricted Stock
Net Earnings (Loss) Per Common Share
Antidilutive securities | shares				112,380	120,306
Warrant
Net Earnings (Loss) Per Common Share
Antidilutive securities | shares				1,400,000	1,400,000
Employee Severance
Severances
Accrued severances				$ 26,000	$ 159,000
Minimum
Goodwill and Intangible Assets
Estimated useful life				1 year
Maximum
Goodwill and Intangible Assets
Estimated useful life				15 years
Interpoint Partners, LLC
Leases
Area under lease (sq. ft.) | ft²	24,335		8,582
Lease duration	102 months		72 months
Duration of rent allowance	8 months		4 months
Meta
Leases
Area under lease (sq. ft.) | ft²		10,350
Lease duration		2 months
Duration of rent allowance		63 months
Assets Held under Capital Leases
Leases
Property and equipment, net				$ 1,652,000	1,515,000
Accumulated depreciation and amortization				$ 1,166,000	$ 494,000
Restricted Stock Award
Equity Awards
Required service period				1 year
Stock Options
Net Earnings (Loss) Per Common Share
Options outstanding | shares				2,411,879	2,437,323
Internally-developed software | Meta
Capitalized Software Development Costs
Intangible assets							$ 3,646,000
Internally-developed software | Unibased
Capitalized Software Development Costs
Intangible assets					$ 2,017,000	$ 2,017,000