Mortgage and Loans Payable - Additional Information (Detail) (USD $)	12 Months Ended							1 Months Ended	12 Months Ended			1 Months Ended			1 Months Ended		12 Months Ended					1 Months Ended	12 Months Ended		12 Months Ended
	Dec. 31, 2013 Coins	Dec. 31, 2012	Dec. 31, 2011	Jul. 31, 2013	May 10, 2012	Jul. 11, 2008	Dec. 31, 2013 First Mortgage [Member]	Mar. 31, 2012 Term Loan [Member]	Dec. 31, 2013 Term Loan [Member]	Mar. 30, 2012 Term Loan [Member]	May 04, 2011 Term Loan [Member]	Jul. 31, 2013 Term Loan Amendment [Member]	Jul. 31, 2013 Project Term Loan [Member] oz	Jul. 31, 2013 Project Term Loan [Member] Gairsoppa [Member]	May 31, 2009 Mortgage Payable [Member]	May 31, 2008 Mortgage Payable [Member]	Dec. 31, 2013 Mortgage Payable [Member]	Jun. 30, 2013 Mortgage Payable [Member]	Jul. 11, 2008 Mortgage Payable [Member]	May 31, 2008 Mortgage Payable [Member] First Mortgage [Member]	May 01, 2009 Mortgage Payable [Member] Second Mortgage [Member]	Nov. 30, 2011 Senior Convertible Note [Member] Investor	Dec. 31, 2013 Senior Convertible Note [Member]	May 10, 2012 Senior Convertible Note [Member]	Dec. 31, 2013 Senior Convertible Note [Member] Lender [Member]	Dec. 31, 2013 Additional Note [Member]	Dec. 31, 2012 Additional Note [Member]	Jan. 02, 2013 Additional Note [Member]	May 10, 2012 Additional Note [Member]
Debt Instrument [Line Items]
Company's consolidated debt	$ 12,294,546						$ 569,036			$ 5,000,000	$ 5,000,000		$ 10,000,000				$ 1,248,250	$ 1,302,000	$ 2,580,000
Term loan principal reduction											2,000,000
Basis spread on variable rate, points				0.75%					1.00%	5.00%	5.00%	5.00%	5.00%				1.00%		0.75%
Debt instrument description								one month LIBOR rate plus 500 basis points	one month LIBOR rate plus 500 basis points			one month LIBOR rate plus 500 basis points	One month LIBOR rate plus 500 basis points
Commitment fee											250,000
Maturity date								Jul. 11, 2013	Apr. 23, 2012			Jul. 31, 2016	Jul. 24, 2014			May 14, 2015	Jul. 11, 2013
Loan-to-value, percent	80.00%
Periodic payment												500,000				5,080
Secured collateral	25,000
Value of secured collateral, percent	40.00%
Loan origination fee paid at closing													50,000
Restricted cash deposit for interest payments over the term of loan	500,000					500,000							500,000
Project term loan collateral value														10,000,000
Loss recovered													1,800,000
Periodic payments, principal	10,750																10,750
Interest rate description	Prime rate plus three-fourths of one percent (0.75%)																Prime rate plus three-fourths of one percent (0.75%)
New maturity date of mortgage loan																	Jul. 31, 2016
Principal amount outstanding																				679,000	100,000
Interest rate, stated percentage																6.45%													9.00%
Outstanding principal amount mortgage loan															25,000
Percentage of variable interest																1.00%
Original principal amount					8,000,000																	10,000,000							8,000,000
Warrant issued to purchase common stock	1,302,083																					1,302,083
Original principal amount of repurchased note																						5,000,000
Debt related expenses																							545,000		45,000
Number of institutional investor under securities purchase agreement																						1
Indebtedness interest rate per year																							8.00%
Indebtedness interest rate per year under default condition																							15.00%
Original principal installments																							434,783
Note repayment commencing date																							Jul. 08, 2012
Debt instrument conversion reset conversion price description																							The reset conversion price applicable to the Initial Note was to be adjusted to the lesser of (a) the then current conversion price and (b) the greater of (i) $1.44 and (ii) 110.0% of the market price of our common stock on the six-month anniversary of the initial closing date (as applicable, the "Conversion Price").
Debt instrument conversion price																							$ 1.44
Debt instrument conversion price, percentage	125.00%																						110.00%
Initial conversion price																							$ 3.74	$ 3.17				$ 3.17	$ 3.74
Debt instrument amortization payment description																							The conversion rate applicable to any amortization payment that we make in shares of our common stock will be the lower of (a) the Conversion Price and (b) a price equal to 85.0% of the average for a ten-day period immediately prior to the applicable amortization date of the volume-weighted average price of our shares of common stock.
Volume-weighted average price, percentage																							85.00%			85.00%
Conversion price applicable period																							10 days			10 days
Acceleration payment of remaining face value, percentage	125.00%
Adjusted conversion price of quoted market prices, Percentage	75.00%
Common stock shares issued as payment in outstanding principal																							3,282,934
Principal amount outstanding																							8,608,694
Principal payment																							1,391,306			4,086,957
Common stock initial exercise price	$ 4.32
Common stock issued under warrant terms	434,027																									1,562,500
Period for anniversary, initial closing date	Five-year period beginning on the six-month
Warrant exercise price	4.32				3.60
Registration statement filing period	6 months
Period for registration statement to be effective	90 days thereafter
Registration statement review period	120 days thereafter
Debt instrument amortization payment description																										The conversion rate applicable to any amortization payment that we make in shares of our common stock will be the lower of (a) the Conversion Price and (b) a price equal to 85.0% of the average for a ten-day period immediately prior to the applicable amortization date of the volume-weighted average price of our shares of common stock.
Maximum percentage of cash flow effect on present value basis																												10.00%
Percentage of carrying value of additional note to determine change in fair value of embedded conversion option																												10.00%
Term of warrant	5 years 6 months
Adjusted warrants exercise price	3.60
Gross proceeds from derivative instrument	10,000,000																									8,000,000
Cost of the investor paid	45,000																									5,518
Direct financing cost	500,000																									400,000
Deferred cost	246,653																									317,201
Recorded expenses	253,347																									82,799
Interest expenses	2,146,182	4,545,781
Amortization of Additional note	185,113	425,561	272,998																								223,783
Operating lease expiration date	Apr. 30, 2014
Vessel charter lease rent per day if extended	$ 14,000